A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6685-00-446-2692
NSN 4140-00-679-9512
NSN 7035-01-433-9705
NSN 5990-01-264-6512
NSN 6135-01-393-4746
NSN 5975-01-259-1674
NSN 6145-01-483-6567
NSN 6150-00-900-3018
NSN 4140-01-099-8096
NSN 5835-00-779-2836
NSN 5999-00-236-8995
NSN 2925-01-514-3865